949621 has 2 divisors, whose sum is σ = 949622. Its totient is φ = 949620.

The previous prime is 949609. The next prime is 949631. The reversal of 949621 is 126949.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 756900 + 192721 = 870^2 + 439^2 .

It is an emirp because it is prime and its reverse (126949) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 949621 - 2⁵ = 949589 is a prime.

949621 is a lucky number.

It is equal to p₇₄₈₇₅ and since 949621 and 74875 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (949631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474810 + 474811.

It is an arithmetic number, because the mean of its divisors is an integer number (474811).

2⁹⁴⁹⁶²¹ is an apocalyptic number.

It is an amenable number.

949621 is a deficient number, since it is larger than the sum of its proper divisors (1).

949621 is an equidigital number, since it uses as much as digits as its factorization.

949621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The square root of 949621 is about 974.4849921882. The cubic root of 949621 is about 98.2916827022.

The spelling of 949621 in words is "nine hundred forty-nine thousand, six hundred twenty-one".